@book{softwareDesign,
    title = "A Software Design Specification Template",
    author = "Brad Appleton",
    year = "1997"
 }
 
 
@article{json,
	author= "Crockford, Douglas",
	year = "2006",
	month = "December 6",
	title = "The Fat-Free Alternative to XML",
	note = "Retrieved March 25, 2012"
}

@article{rfc2446,
	title="iCalendar Transport-Independent Interoperability Protocol",
	author="S.Silverberg, S. Mansour, F. Dawson and R.Hopson",
	year="1998"
}

@article{rfc5546,
	title="iCalendar Transport-Independent Interoperability Protocol update",
	author="C. Daboo",
	year="2009"
}
@misc{datumprikker,
	title = "\url{datumprikker.nl}",
	url = "www.datumprikker.nl",
	note = "Retrieved 7 March, 2012"
}

@misc{doodle,
	title = "\url{www.doodle.com}",
	url = www.doodle.com,
	note = "Retrieved 15 March, 2012"
}

@misc{9292,
	title = "\url{www.9292.nl}",
	url = "www.9292.nl",
	note = "Retried 14 March, 2012"
}

@misc{ns,
	title = "\url{www.ns.nl}",
	url = "www.ns.nl",
	note = "Retrieved 14 March, 2012"
}


@misc{openov,
	title = "\url{www.openov.nl}"
	}

@misc{buienradar,
	title = "\url{www.buienradar.nl}"
	}
